It could be a pretty touching ending to the game if you sacrifice yourself and then there are cutscenes of your funeral, or people erecting a statue of you or something.

Of course. I also love unpredictable games, makes them more intersting.

no statues.

The player will grow fond of these characters just through the playing the game, as many people grew to love Tidus.

It will definitely be an agonizing choice, whether to try to defeat the boss that may eventually return (not decided yet) or to give yourself totally to save the world.

I think the question of choice is an interesting one. Maybe the question is like can the player win if he does not sacrifice himself. That is a question that i think will linger until the game is complete. LOL, even the creators don''t know what will happen.